The Effect of Interval Training Using Body Weight on Body Composition in Sedentary Overweight and Obese Adults
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- Mayo Clinic
- 入组人数
- 22
- 试验地点
- 1
- 主要终点
- Change in Body fat percent
研究概览
简要总结
Body-weight based interval training (IT) performed 3 times per week will lead to reductions in abdominal adiposity and reduce overall body fat percentage in overweight and obese sedentary adults more effectively than moderate intensity continuous training (MICT). Body-weight interval training will improve exercise capacity (peak VO2) in overweight/obese adults.
详细描述
Participants will be randomly assigned to one of the two home-based exercise groups.
The MICT group is the standard care group and will be instructed to walk for 30 minutes, 5 days per week at a moderate intensity. The goal is to accumulate 150 minutes of continuous aerobic exercise each week. Participants will be instructed on the use of the Rating of Perceived Exertion (RPE) scale during baseline testing and will be instructed to reach an RPE of 12-16. A heart rate monitor will be worn to monitor exercise intensity. Heart rate should reach ~70% of maximal heart rate.
The IT group will perform 5 body-weight exercises in three progressive phases. During the first 2 weeks the circuit will be completed twice, 30 second intervals, 90 seconds of rest. The exercises will be performed on 3 days of the week with at least one day of rest between exercise days (ideally Monday, Wednesday, Friday). The number of repetitions will increase to a maximum of 4 while the interval and rest periods increase to a maximum of 45 seconds each. The total time spent performing intervals by week 8 will be 15 minutes. A 2 minute warm up and 3 minute cool down will be performed, such as jumping jacks or simply walking. A heart rate monitor will be used to measure exercise intensity. Heart rate should reach approximately 90% of heart rate max during the intervals. Participants will be instructed on the use of the Rating of Perceived Exertion scale during baseline testing and will be instructed to reach an RPE of ≥17 during the high intensity intervals.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Other
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 65 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Adults 18-65 years of age
- •Willing and able to provide informed consent
- •Sedentary, overweight and obese adults (<90 minutes of moderate intensity exercise)
- •BMI 25≤35
- •Able to safely begin an exercise program
- •Have a smartphone, and willing and able to download and use the Fitbit app
排除标准
- •Unable to provide informed consent.
- •Known cardiovascular disease, or uncontrolled hypertension,
- •Diagnosed type 1 or 2 diabetes
- •Women who are pregnant or plan to become pregnant in the next 3-4 months
- •Orthopedic injury/limitation or any other contraindications to exercise.
- •Medications that cause weight gain (steroids, HIV-related medications, etc.), or glucose lowering medications
研究组 & 干预措施
Standard Walking
This arm is prescribed standard of care exercise prescription; 30 minutes of moderate intensity walking, 5 days/week.
干预措施: Standard of Care (Behavioral)
Interval Training
This arm is prescribed body-weight based interval training 3 days per week with progressive increase in exercise intervals and sets.
干预措施: Interval Training (Behavioral)
结局指标
主要结局
Change in Body fat percent
时间窗: 12 weeks
DEXA derived body fat %
次要结局
- Change in Weight(12 weeks)
- Change in peak VO2(12 weeks)
- Visceral adipose tissue area(12 weeks)
- Thigh adipose tissue area(12 weeks)
研究者
Amanda R. Bonikowske
Senior Associate Consultant
Mayo Clinic